The purpose of this paper is to present a comparative study of the Kline finger blood test for syphilis1 and the accepted complement-fixation and precipitation tests, with special emphasis on the agreement of the tests with clinical findings. Since the finger blood test takes only a few minutes to do and requires only a small quantity of comparatively easily obtainable finger blood, this test is particularly useful in testing blood of infants and obese patients with small veins and in checking the blood of professional donors immediately before transfusions.
The specimens of blood were obtained from hospital and private practice. The patients were divided into syphilitic and nonsyphilitic groups ; the latter included all patients with miscellaneous dermatoses and patients who presented themselves for syphilitic investigation who proved to be normal both clinically and serologically.
The finger blood test was performed according to the following technic described by
ELLER JJ, REIN CR. KLINE FINGER BLOOD PRECIPITATION TEST FOR SYPHILISA COMPARATIVE STUDY WITH WASSERMANN AND KAHN METHODS, WITH CLINICAL EVALUATION IN MORE THAN FIVE HUNDRED CASES. Arch Derm Syphilol. 1932;25(2):239–244. doi:10.1001/archderm.1932.01450020251003
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